One of the things I like most about holiday fic exchange season is that it gets me to read pairings I ordinarily wouldn't, and missing this one at any other time of the year would have been a shame, because it's so good. The characterizations here, especially Percy's, was incredibly well-done. The cameos, especially Bill's, were lovely.
And the emotion! Gah, I had a lump in my throat when this was over. If fics can find ways to bring Snape, Remus, and/or Tonks back from the dead post-DH, why not Moody? I truly hope both Percy and Moody got their happy ending.
Lovely work, mystery author! I'm looking forward to finding out who you are so I can check out more of your work.